Well there is no way to do this using jQuery and html only, you could maybe achieve to render the page in the iframe, but any underlying functionality will not work because the requests will still go to the origin site and if they have x-frames they surely have cross-origin policies enabled.
the x-frame is by design intended to be "hack-proof".
However there is a more complex solution that involves a hack at network level, it could work but I would need access to your server to do some tweaks...
I never tried it but I have it in my head now. Trust me Im an engineer.
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